Chuck mechanism.



No. 846,875. PATENTED MAR. 12, 1907.

A. TINDEL.

CHUCK MECHANISM. APPLIOATION'IILED 11017.27, 1905.

WITNESSES: IIVVENTOI? and pins angu UNITED sTA r-Es PATENT OFFICE.

ADAM TINDEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO TINDEL MORRIS COMPANY, OF EDDYSTONE, PENNSYLVANIA, ACORPORATION OF PEN N SYLVANIAJ CHUCK MECHANISM.

, Patented-March 12, 1907.

Application filed November 27, 1905. Serial No. 289,362.

To all whom it may concern:

Be it known, that I, ADA TINDEL, a citizen of the United States, and a resident of Philadel hie in the county of Philadelphia endSta e 0 Pennsylvania, have invented certain Improvements in Chuck Mechanism, of which the following is a specification.

This invention is an improved chuck mechanism designed 'particularly for holding crank-shafts and centering1 crank-pins in turnin -lathes, so that-thee aft ends can be firmly arl' disposed on'thefshaft can be revolved mto tli struction overcoming t e difiiculties heretofore found in satisfactorily centering and holding crank-shaft pins for turning them in contact with a cutting or reducing tool.

In the accompanying drawings Figure 1 represents a perspective view,of a lathe facelate having my improved chuck mechan- 1811']. applied thereto, and'Fig. 2 represents a central transverse" sectional view therewith with part broken away.

-As shown in the drawing form the invention comprisesthe .facelate 1, having the base 2 formed integrally t ere- -with. on the base is movably supported a slide or carriage 3,'having a dovetail guide 4, which runs in the undercut or dovetail way 5, formed in the base and diametrically disosed with reference to the face-plate; A

ug 6, secured to the slide and disposed in the way 5, is en aged by a screw 7, 1ournaled in bearings 8, y which .the slide may be adjusted longitudinally to the position desired with reference to the center of the'face-plate 1. Holes 9 in the base extending parallel to the wa 5 are disposed at graduated dis= tances cm the center, and the. holes 10 in the slide are brought into registration therewith by the operation of the screw, upon which dowel-pins 11 are inserted to hold the slide in the desired position. The slide is secured immovably in the positionto which it p is adjusted by bolts 12, which pass thereeld against movement or vibration ecentral osition re uired for turning them, the s ecia features 0 con- "drawing together the' flanges 15.

through, and the base 17, having thereon the circular'flange or ring 18, to which the sleeve is integrally connected,' is held to the slide by clips 19, en aged to the slide by bolts 20,

which are re easedto permit the chuck to be.

turned and drawn up to-fix it. the chuck being centered by a centrally-disposed cylindrical boss 21 thereon which revolves in a corresponding socket 22 in the slide movable in a p ane passingthrough the centerofo the face-plate,

In the 'sleeve14 is a split bushing into -which the end of the. s

aft' to'be operated upon is inserted, and thereby gripped by center the pin,- the face-plate is revolved to revolve the "crank-shaft by the revolving and fixed so as to fix the center of the chuck at the proper '70 tering the crank-pin. to be turned and the chuck fixed to the carriage by the clamps'or shaft 24, having the pinion 25 fixedthereon,

p p p which'fenga es the car 26 of the face-plate. 1 s; in its preferred Having escribe my invention, I claim* "1. v A chuck mechanism comprising, in combination with a face-plate having guiding means thereon, a slide with guiding means engaging the guidin means of said faceplate, a chuck carrie by saidslide and hav ing a circularflange thereon, "and means for clamping said flange to said slide. p

,2. A-chuck-mechanism comprising a facepiatelhaving a base formed integrally therewith and projecting therefrom, said base having longitudinal guiding means, a slide mounts on said base and having guidin means engaging the guiding means of sai base, means for adjusting and means for fixing said sliderelative to-said base, a split sleeve supported by said slide so that it can be turned relatively thereto, saidsleeve hav ing a circular base-flange thereon, and means. 

